Entec ETMFC610 - Page 291

Multi-Function Control ETMFC610 http://www.entecene.co.kr
281
EN
HANCED
TEC
HNOLOGY
8.5.3.2. Overfrequency (81O)
In case that overfrequency is kept higher than a certain frequency for a certain time, overfrequency
element makes an alarm operation. Overfrequency element is set in GROUP setting. If VTs is delta

- connection V
A-B
is to be zero-crossing and if Y connection, V
A-N
.is to be zero-crossing.
Overfrequency minimum voltage and minimum current is used to prevent mal-operation when dead
line.
1) OVER FREQUENCY 1 Setup
The over frequency 1 should be enabled to following settings;
GROUP # / MONITORING / FREQUENCY /OVER FREQUENCY1 / Function
Range
DISABLE, ENABLE
Default
DISABLE
Step
~
Set the function of over frequency 1 element as enable or disable.
If function = DISABLE, the feature is not operational.
If function = ENABLE, the feature is operational. When the feature
asserts an alarm condition, the device gives the alarm.
GROUP # / MONITORING / FREQUENCY / OVER FREQUENCY1 / Pickup
Range
40.00 ~ 65.00 Hz
Default
62.50
Step
0.01Hz
Enter the level of which the overfrequency element is to pickup.
GROUP # / MONITORING / FREQUENCY / OVER FREQUENCY1 / Time Delay
Range
0.00~ 600.00 sec
Default
2.00
Step
0.01 sec
Sets the delay time to operate the overfrequency element.
[OVER FREQUENCY1
]
>Function: DISABLE
Pickup: 62.50
Time Delay: 2.00
Reset Time: 2.00
Min. Volt: 0.10
[DISABLE/ENABLE]
[OVER FREQUENCY1
]
Function: DISABLE
>Pickup: 62.50
Time Delay: 2.00
Reset Time: 2.00
Min. Volt: 0.10
[40.00~65.00:0.01Hz]
[OVER FREQUENCY1
]
Function: DISABLE
Pickup: 62.50
>Time Delay: 2.00
Reset Time: 2.00
Min. Volt: 0.10
[0.00~600.00:0.01s]